1 files changed, 6 insertions, 0 deletions
diff --git a/src/cryptonote_protocol/block_queue.h b/src/cryptonote_protocol/block_queue.h
index 9059e89ac..9cce95075 100644
--- a/src/cryptonote_protocol/block_queue.h
+++ b/src/cryptonote_protocol/block_queue.h
@@ -33,6 +33,7 @@
 #include <string>
 #include <vector>
 #include <set>
+#include <unordered_set>
 #include <boost/thread/recursive_mutex.hpp>
 #include <boost/uuid/uuid.hpp>
 
@@ -93,7 +94,12 @@ namespace cryptonote
     bool requested(const crypto::hash &hash) const;
 
   private:
+    void erase_block(block_map::iterator j);
+    inline bool requested_internal(const crypto::hash &hash) const;
+
+  private:
     block_map blocks;
     mutable boost::recursive_mutex mutex;
+    std::unordered_set<crypto::hash> requested_hashes;
   };
 }